/*
XPTracker - Alternative Agile Tracking Tool
Copyright (C) 2006-2009  Stephen Starkey

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
*/
package org.xptracker.web;

import com.google.inject.AbstractModule;
import com.google.inject.Provider;
import com.google.inject.name.Names;

import javax.servlet.http.HttpServletRequest;

public class ServletModule extends AbstractModule {
  protected void configure() {
    bind(String.class).annotatedWith(Names.named("context-path")).toProvider(new Provider<String>() {
      public String get() {
        HttpServletRequest request = RequestInjectionFilter.request.get();
        if (request != null) {
          return request.getContextPath();
        }
        return "";
      }
    });

    bind(String.class).annotatedWith(Names.named("history-depth")).toProvider(new Provider<String>() {
      public String get() {
        HttpServletRequest request = RequestInjectionFilter.request.get();
        if (request != null) {
          final Object attribute = request.getAttribute("historyDepth");
          if (attribute != null) {
            return String.valueOf(attribute);
          }
        }
        return "";
      }
    });
  }
}
